DYOS Tool
Natural Minerals Group
From the standards library of SPI Supplies and the C. M. Taylor Company
# AS1020-AB
Almandine
Fe
3
Al
2
Si
3
O
12
Element
Wt %
Oxide
Wt %
O
42.01
Mg
6.45
MgO
10.70
Al
11.67
Al
2
O
3
22.05
Si
18.32
SiO
2
39.19
Ca
3.00
CaO
4.20
Mn
0.46
MnO
0.59
Fe
18.09
FeO
23.27
Sum
100.0
Sum
100.0
Crushed separated crystals
Locality: New York State, USA
This is an optical micrograph of a polished, carbon coated almandine garnet crystal taken in reflected light. The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument. Almandine (or almandite) is the iron aluminum end member of the garnets and is a rugged mineral as can be seen from its good polish and prominent relief. Homogeneous garnets are rare so this is a prized material.
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for a mineralogical account of everything you might want to know about Almandine.
Name
Description
SPI #
Each
Almandine
SPI SuppliesŪ Individual Mounted Microanalysis Standard Item
AS1020-AB
$
Almandine
SPI SuppliesŪ Individual Loose Microanalysis Standard Item
AS1025-AB
$
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